The present invention relates to a medical delivery device comprising a tubular distal housing a tubular proximal housing a medicament container arranged inside said tubular proximal housing a threaded hollow plunger rod a spring force means pre-tensioned arranged within said plunger rod activation means arranged to be movable between a non-medicament delivery state and a medicament delivery state dose setting means being threadedly arranged to said threaded hollow plunger rod and arranged to be rotationally moved between a stop position and a set dose position, whereby upon activation of said activation means from the non-medicament delivery state to the medicament delivery state, said threaded hollow plunger rod is linearly displaced due to the force of the pre-tensioned spring means such that the dose setting means is also linearly displaced from the set dose position to the stop position.一種藥物輸送裝置,係包括一管狀末端外殼;一管狀近側外殼;一藥物容器在管狀近側外殼內;一螺紋中空柱塞桿;一彈力裝置預先伸縮在該柱塞桿內;啟動裝置可在非藥物輸送狀態和藥物輸送狀態間移動;劑量設定裝置被交織地安排於該螺紋中空柱塞桿且可在一停止位置和一設定劑量位置間旋轉移動,藉此,靠著從非藥物輸送狀態到藥物輸送狀態啟動該啟動裝置,該螺紋中空柱塞桿由於預先伸縮的彈簧裝置被線性移開,以致劑量設定裝置也可從設定劑量位置被線性移到停止位置。110‧‧‧管狀近側外殼112‧‧‧管狀末端外殼115‧‧‧窗口118‧‧‧輸送構件(注射針)124‧‧‧按鈕146‧‧‧劑量設定圓筒152‧‧‧窗口
